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When do you use varargs in Java?
...d a mechanism to pass in any number of objects.
String.format("This is an integer: %d", myInt);
String.format("This is an integer: %d and a string: %s", myInt, myString);
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In laymans terms, what does 'static' mean in Java? [duplicate]
...n instance of the object to be used.
public class SomeObject {
public int someField;
public void someMethod() { };
public Class SomeInnerClass { };
}
In order to use someField, someMethod, or SomeInnerClass I have to first create an instance of SomeObject.
public class SomeOtherObjec...
Android: Temporarily disable orientation changes in an Activity
...activity has some code that makes some database changes that should not be interrupted. I'm doing the heavy lifting in another thread, and using a progress dialog which I set as non-cancellable. However, I noticed that if I rotate my phone it restarts the activity which is REALLY bad for the process...
HTTPS connections over proxy servers
...can remember, you need to use a HTTP CONNECT query on the proxy. this will convert the request connection to a transparent TCP/IP tunnel.
so you need to know if the proxy server you use support this protocol.
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MySql: Tinyint (2) vs tinyint(1) - what is the difference?
I knew boolean in mysql as tinyint (1) .
4 Answers
4
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How to wait for 2 seconds?
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--Example 2
DECLARE @Delay2 DATETIME
SELECT @Delay2 = dateadd(SECOND, 2, convert(DATETIME, 0))
WAITFOR DELAY @Delay2
A note on waiting for TIME vs DELAY:
Have you ever noticed that if you accidentally pass WAITFOR TIME a date that already passed, even by just a second, it will never return? Che...
Animate change of view background color on Android
...ce this TransitionDrawable in the android:background attribute.
At this point you can initiate the transition in your code on-command by doing:
TransitionDrawable transition = (TransitionDrawable) viewObj.getBackground();
transition.startTransition(transitionTime);
Or run the transition in rever...
android: move a view on touch move (ACTION_MOVE)
...mplements View.OnTouchListener {
TextView _view;
ViewGroup _root;
private int _xDelta;
private int _yDelta;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
_root = (ViewGroup)findViewById(R.id.root);
_...
Swift equivalent for MIN and MAX macros
...to type it up in Xcode and check out the Swift header. If you type let a : Int = 5 and Command + Click on Int, you get to see cool stuff!
– Jack
Jun 12 '14 at 14:37
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How do I get the first n characters of a string without checking the size or going out of bounds?
...substring_safe, like paxdiablo's answer, so that usage is easier to read / intent more obvious.
– ToolmakerSteve
Aug 20 '14 at 5:17
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